Larian Studios Forums Baldur's Gate III Baldur's Gate III - Suggestions & Feedback stick with the 5e monster stat blocks

Larian changed enemies HP because they lowered their AC, in other ways fights will be boring if you can kill half your enemies in one turn.
You can tell "so they shouldn't do this" but it was necessary.
They can't add more enemies if you don't want to wait 10 minutes for your turn. Remember this is turn-based game.
It's primarily a game so it has to be fun. This is the first problem. Do you know XCOM memes?
How many times have you used a sacred flame and it actually hit?
If you don't hit enemy for several turn in row game can quickly become frustrating. Even with lowered AC you miss many times.
If every attack will be has % like sacred flame, most players will be frustrated after few hours and will probably delete the game.
Most players never played d&d, game has to be friendly for them. You can find a lots of thread where people complains about rng, even with lowered AC.